code: def forward(self, x):
      x = self.linear0(x)
      x = self.linear1(x)
      x = self.linear2(x)
      x = self.linear3(x)
      x = self.linear4(x)
      x = self.linear5(x)
      x = self.linear6(x)
      return x
  
file_path: ColossalAI/tests/test_fx/test_codegen/test_offload_codegen.py
imports: import copy
  import pytest
  import torch
  from torch.fx import GraphModule
  import colossalai
  from colossalai.fx import ColoTracer
  from colossalai.fx.graph_module import ColoGraphModule
  from colossalai.legacy.core import global_context
  from colossalai.testing import rerun_if_address_is_in_use, spawn
label_desc: Use image node_id 2 for calling the MyNet obj's underlying member method code with example usage: obj.forward(x) and returns: x